Double-spin asymmetry A(LT)(cos phi S) LT in semi-inclusive DIS at CLAS12 and EIC within the collinear framework

Wang Xiaoyu; Mao Wenjuan; Lu Zhun

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Double-spin asymmetry A(LT)(cos phi S) LT in semi-inclusive DIS at CLAS12 and EIC within the collinear framework

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摘要

We study the longitudinal-transverse double-spin asymmetry with a cos phi(S) modulation in semi-inclusive deep inelastic scattering for charged and neutral pion production. We consider the particular case in which the transverse momentum of the final-state hadron is integrated out. The corresponding asymmetry may be contributed by two parts: one is the convolution of the twist-3 distribution function g(T)(x) and the unpolarized fragmentation function D-1(z); the other is related to the coupling of the transversity distribution function h(1)(x) and the collinear twist-3 fragmentation function (E) over tilde (z). We take into account both contributions to predict the cos phi(S) asymmetry at the kinematics of CLAS12 and a future Electron Ion Collider. We find that the asymmetry of pion production at CLAS12 is sizable, and (E) over tilde (z) can play an important role in the asymmetry in the large-z region.

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《Physical review, D》 |2016年第7期|共9页
作者
Wang Xiaoyu; Mao Wenjuan; Lu Zhun;
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Southeast Univ, Dept Phys, Nanjing 211189, Jiangsu, Peoples R China;

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正文语种英语
中图分类粒子物理学;场论;
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1. Double-spin asymmetry A(LT)(cos phi S) LT in semi-inclusive DIS at CLAS12 and EIC within the collinear framework [J] . Wang Xiaoyu, Mao Wenjuan, Lu Zhun Physical review, D . 2016,第7期

机译：在Clas12和Consear框架内的半包层和EIC中的双自旋不对称A（LT）（COS PHI S）
2. Spin-independent and double-spin cos phi asymmetries in semi-inclusive pion electroproduction [J] . Oganessyan KA., Asilyan LS., Anselmino M.De Sanctis E. Physics Letters, B. Nuclear Physics and High Energy Physics . 2003,第2期

机译：Spin-independent and double-spin cos phi asymmetries in semi-inclusive pion electroproduction
3. Double-spin cos phi asymmetry in semi-inclusive electroproduction [J] . Oganessyan KA., Mulders PJ., De Sanctis E. Physics Letters, B. Nuclear Physics and High Energy Physics . 2002,第2期

机译：Double-spin cos phi asymmetry in semi-inclusive electroproduction
4. The production of high-quality DI castings in grade EN-GJS 350-22LT for transportation of nuclear waste [C] . J. J. M. van der Randen Keith D. Millis World Symposium on Ductile Iron . 1998

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5. Double Spin Asymmetries $A_{LT}^{\cos\phi_S}$ and $A_{LT}^{\cos(2\phi_h -\phi_S)}$ in semi-inclusive DIS [O] . Mao, Wenjuan, Lu, Zhun, Ma, Bo-Qiang, 2015

机译：双旋转不对称$ a_ {LT} ^ {\ cos \ phi_s} $和$ a_ {LT} ^ {\ cos（2 \ phi_h - \ phi_s）} $ in semi-inclusive DIs

Double-spin asymmetry A(LT)(cos phi S) LT in semi-inclusive DIS at CLAS12 and EIC within the collinear framework

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